B18C1 Head for Turbo set up

There is a guy selling a B18C1 head, i told him i would buy it so i put 100 down for him to hold it, he’s selling it for 500…now my concerns are basically what should i look for so that i wont get ripped off, like i said in my previous threads is that im still learning about the B series motors, but if someone wouldnt mind giving me some pointers and some things that i should be looking for before i buy it 2morrow???

Another question is that i have is i also have the option of getting a B20 motor from a local shop that would be willing to sell me for 600 bucks, but i dont remember if it comes with an ECU, but my questions was if it didn’t should i just buy a P28 ECu, or just keep my LS ECU and get it chipped for an VTEC conversion, Does anyone know???